Home / 103,385,687.28-142,673,222.52-56,977,612.08

Finding the Fourth Proportional to 103,385,687.28, 142,673,222.52 and 56,977,612.08

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Solution

The fourth proportional to 103,385,687.28, 142,673,222.52 and 56,977,612.08 is: 78,629,641.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,385,687.28 : 142,673,222.52 = 56,977,612.08 : x
  2. Step 2: Convert to fraction form
    103,385,687.28/142,673,222.52 = 56,977,612.08/x
  3. Step 3: Cross multiply
    103,385,687.28x = 142,673,222.52 × 56,977,612.08
  4. Step 4: Simplify right side
    103,385,687.28x = 8,129,179,526,948,080
  5. Step 5: Solve for x
    x = 8,129,179,526,948,080/103,385,687.28
  6. Step 6: Final answer
    x = 78,629,641.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.